Repotenciação de geradores: uma avaliação a partir de estudo de caso.

Abstract

There is a major concern of government agencies in maintaining the reliability of the Brazilian system of power generation due to the fact 80% of this energy is arising from hydroelectric power plants, of which 50% have over twenty years of operation. The repowering is a practice that aims to extend the life of hydro, while seeking to rescue the reliability and increase the potency of the plant. Guidelines and actions for technical evaluation of a repowering will be presented, because, due to already exist many repotenciados hydro, it is possible to establish a methodology that addresses the most important aspects of this practice. And describe the development process of repowering the hydroelectric generating units Paulo Afonso II, aspects of repowering these generators, highlighting the methodology, addressing the use of more technologically efficient materials and the results are discussed.